Books by J. B. Yule:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Yule, J. B. (James Blaine), 1884-1957: The Abney level handbook. (Govt. print off., 1927), also by United States Forest Service and H. A. Calkins (page images at HathiTrust)
Find more by J. B. Yule at your library, or elsewhere.